package week3.example;//***********************************************************************************************************************
//    Purchase.java     Author: Duanzhixuan
// Demonstrates the use of the NumberFormat class to format output.
//***********************************************************************************************************************
import java.util.Scanner;
import java.text.NumberFormat;
public class E3_4
{
   //**********************************************************************************************************************
//  Calculate the final price of a purchased item using values entered by the user.
//************************************************************************************************************************
public static void main(String[] args)
{
   final double TAX_RATE = 0.06; //6% sales tax

 int quantity;
 double subtotal,tax,totalCost,unitPrice;

Scanner scan =new Scanner(System.in);

NumberFormat fmt1 = NumberFormat.getCurrencyInstance();
NumberFormat fmt2 = NumberFormat.getPercentInstance();

System.out.print("Enter the quantity:");
quantity = scan.nextInt();

System.out.print("Enter the unit price:");
unitPrice = scan.nextDouble();

subtotal = quantity*unitPrice;
tax = subtotal*TAX_RATE;
totalCost = subtotal + tax;

// Print output with appropriate formatting
System.out.println("Subtotal: " + fmt1.format(subtotal));
System.out.println("Tax: " + fmt1.format(tax) + "at"+fmt2.format(TAX_RATE));System.out.println("Total: " + fmt2.format(TAX_RATE));
System.out.println("Total:" + fmt1.format(totalCost));
}
}

